And joseph loch



(No Model.)

F. G. V0n HEYDEBRAND u. d. LASA 8v J. LCH.

INGANDBSCBNT GAS LAMP.

No. 605,250. .Patented June '7, 1898.

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FERDINAND CHRISTOPH VON HEYDEBRAND UND LASA, OF NEW YORK, AND JOSEPH LOCH, OF BROOKLYN, NEW YORK, ASSIGNORS TO THE HEYDEBRAND IN CANDESCENT LIGHT COMPANY, OF NEW YORK, N. Y.

INCAN DESCENT GAS-LAMP.

SPECFICATION forming part of Letters Patent No. 605,250, dated .Tune 7, 18.98.

Application led May 24, 1897. Serial No. 637,920. (No model.)

To 'ct'ZZ whom t may concern/ Be it known that we, FERDINAND CHRIS- Torn von HEYDEBRAND UND DER LA sA, of the` city and county of New York, and JO- sEPH LOCH, of Brooklyn, Kings county, State of New York, have invented certain new and usei'ul Improvements in Incandescent Gas- Lamps, of which the following is a specification. Our invention relates to gas-lamps, more especially to incandescent gas-lamps, but is not limited thereto, as the invention may be embodied in any species of gas-lamp.

Our invention has for its object to improve gas-lamps, more especially incandescent gaslamps, in the following particulars: iirst, to provide against flickering in the light by restricting the ow of air to the mixing-chamber in such manner that air can only ap 2o proach and enter the said `mixing-chamber j' bya tortuous course, thus avoidingall direct l blowing of air into the mixing-chamber, which has been found detrimental in lamps heretofore constructed; second, to improve the 2 5 lamp by properly regulating the iow of gas thereto, so that vvariations of pressure 41n the service-pipes will be compensated for by the regulator, so that the amount of gas supplied to the name will always be constant, which 3o in incandescent gas-lamps will bring about the effect of a constant light; third, to improve the distribution of gas lto the iiame by providing means for scattering or dividing the gas and delivering it to the mantle, and,

fourth, to prevent dashing back.

A lamp embodying our invention is illustrated in the accompanying drawing, in which i a is any usual gas connection, shown in `the presentinstance as a by-pass cock. This conj 4o nection a is surmounted by a mixing-chamber Z), shown in the present4 instance as off` tubular form and extending upward and.

surmounted by a sleeve c, bearing a burner u The sleeve c is shown as pro- .cup or cap CZ. vided with a sleeve CZK, which carries the burnevgallery e, which is provided with a stud f, pierced for the reception of` a mantlehanger g, whose lower end passes therethrough and is adj ustably held therein by a 5o set-screw 7L. The mantle-hanger is shown in the present instance as a Wire whose upper end is formed in the shape of a hook z', from which the mantlej is suspended. This mantle j hangs down into proximity with the K burner cup or cap, as is usual in lamps of this character.

The mixing-'chamber b is shown as perforated at its sides by perforations 7.a, shown as rectangular, but may be of any desired form.` Surrounding the mixing-chamber is a sleeve Z, apertured with apertures m, through which air may pass, so as to reach the mixing-chamber through the apertures Zc. This sleeve is freely movable on the mixing-chamber and is provided with a shield n, closed at the bottom and open at the top, so that air can obtain access to the apertures m only by passing overv the top of the shield and downward into the said shield and laterally into the openings m, as clearly indicated by the arrows in the drawing. The sleeveZ and its shield n move vertically up and down on the mixing-chamber by reason of the fact that there is a pinand-slot connection o p intervening between the sleeve Zand themiXing-chamberb, whereby when the sleeve Z is rotated the cam action between the pin-and slot connection o p will cause the said sleeve Z to move up or down, as the case may be, thereby not only closing the apertures 7c by a lateral movement upward movement, so that fora given amount of closure the sleeve need be rotated but a slight distance as compared with the distance which it would be necessary to rotate it in case there were no up and down movements.

The sleeve Z may likewise be provided with a means for holding it in a set or liXed position.. This means is shown inthe present instance as a set-screw q, which set-screw passes through the sleeve Z and bears against the mixing-chamber, all of which will clearly appear from the drawing. Y

The burner-cap 'cZ is sui-mounted by a foraminous spreader r, which is shown in the 95 present instance as a dished cap held in place by a removable annular sleeve s, frictionally held to the burner-cup. This sleeve may be suitably connected to the burner-cup, as, for `instance, by a bayonet-joint. I This oramiroo nous spreader r is shown as perforated in a peculiar manner in order to properly spread and distribute the gas to the mantle.

By referring to the drawing it will be noted that the holest are inclined to the axis of the burner-cup, which inclination becomes less and less as we proceed from the center of the cap r to the edge thereof, so that the gas will be distributed upward and outward against the mantle in a sheet toward a single line or plane. Located within the burnercup d below the foraminous spreader r We have shown a cup u, whose upper edge forms a ledge u, upon which a foraminous pan w rests. This foraminous pan is' made solid and dished slightly downward at its center,between which dished portion and the edgeof the pan-are a `which leads into the mixing-chambe1n regulating-chamber a' is pierced with frusto gas.

series of gas-outlets fr. This foraminous -pan serves to permit the gas to, pass upward to .the burner in a regulated quantity and pre.-

Coming now to the regulator, it will be ob-y served that we. have provided a chamber a", This conical apertures, whose apicescommunicate with each other. The lower frusto-conical aperture or valve-chamber b receivesa check or regulator valve c'. This check or regulator valve c/ is shown as hollow and provided with apertures d and askirtor apron e', the said conical part and the apron constitutingthe .conical check or regulator valve.; This 4check or regulator valve has afree movement up and down in the cha1nber,-but .is prevented.

from being brought face to face-against the yconical wall of the chamberv by reason of a, shoulder f, shown somewhat exaggerated, formed atthe base of they conical `chamber `or. .aperture h', so that when understrong gas- `pressure the check or regulator valve `is firmly seated it Willcome against the said shoulder y and leavea slight space between the two conf; f ,ical faces,so asito allow for the passageof the It .will be understoodthat. the valveris*` very` light and will be kept up 4by the gaspressureand will regulate the supply ofigas u tothe mixing-chamber Vcorresponding to the.

. pressures the check or regulator Willdrop down and leave aconsiderable space between the conicalwalls of the valve and chamber b',

so that gas can `pass in considerable volume, but upon increase of gas-pressure the valve will rise and diminish the space between the conical walls, so as to allow the gas to liow in less volume, and consequently the opening or passage for the flow of gas will be enlarged or restricted proportionately to the pressure of the gas. In order to prevent choking up of the parts, we provide a netting g below the regulator or between the regulator and the gas- Supplr Having described our invention, what we claim, land desire to secure by Letters Patent, 1s-

l. In a gas-lamp, the combination of an apertured mixing? chamber, an apertured sleeve independent of the burner and freely movable thereon, a pin-and-'slot connection between the sleeve and mixing-chamber, whereby the said sleeve may be moved longitudinally on the mixing-chamber when it is rotated thereon, and means for iiXin g the sleeve in a predetermined position.

2. In a gas-How regulator, the combination of -a valve-.chamber having a frusto-conical 'valve-seat,-theopening in which is at the apex thereof, a conical check-valve. apertured at Kits sides and of a diameter sufficient to reach contactwithftheside walls of saidvalvechamber and entered into the valve-seat of the chamber, and a stop for preventing the check-.valve from contacting with the said valve-.seat and closing the opening therein. y

3..As a means for securing the eflicien/t burning of the gas in a gas-burner, the combination of- .a Vmantle, andl a Aforaminous spreader provided with apertures t, which apertures-t are at different inclinations to the surface ofV the spreader, the apertures near the middlepof the spreader being generally more inclined to the axis of the spreader than those at theedge thereof so as to spread the .gas out into asheet, whereby fthe gas will flame in the didished portion surrounded byperforated rim,

said -pan being located within the said cup, whereby ,the said .downwardly-extending dished portion ofthe pan will distribute the gas outward to the perforated rim, substantially as described.

FERDINAND CHRISTOPH VON IIEYDEBRAND U. D. LASA. JOSEPH LOOII-` Vitnesses:

,- GEO. E. MORSE,

MAURICE BLOCK. 

